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TROPICAL RAINFOREST, Abiotic factors, image, image - Coggle Diagram
TROPICAL RAINFOREST
Biotic Factors
Competition
Plants under the canopy layer: The organisms under the tree canopy do not receive a lot of sunlight, so they have to compete with each other.
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Human activities
Negative
Farming: farmers are clearing land to grow cash crops, such as soya beans.
Mining: This has led to the development of mines which results in the clearance of tropical rainforest.
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Roads: the construction of access roads for farmers, loggers and miners results in large parts of the tropical rainforest being destroyed
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Abiotic factors
- Climate: Typically hot, very humid, and wet, as it rains all year long (at least 60 millimetres (2.4 in) of rainfall every month of the year).
A typical daytime temperature any time of year in tropical rainforests is 29°C (85°F), although temperatures can be much higher.
- Soil: As in tropical rainforests, it rains most of the year, many nutrients from the soil are dragged away, leaving behind a low fertility soil. The soil we are left with is called Ultisols and Oxisols. While Ultisols are known as well weathered, acidic red clay soils, defficient in major nutrients such as calcium and potassium, Oxisols are rich in Iron and aluminium oxide minerals.
- Geography: Most tropical rainforests are located in lowland regions of the tropics, therefore, rainfall appears most year long.
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